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SST1 and SST2 Beamlines (7-ID)Instrument Readiness Review
Overview
SST1 and SST2 Beamlines (7-ID)Instrument Readiness Review
OverviewCherno Jaye and Conan Weiland
On behalf of the NIST NSLSII Partner Beamline Readiness Team
22
OutlineOutlineBackground
Scientific Program; Beamline layout; Commissioning sequence
Pillar I: DocumentationRay‐tracing; FLUKA calculation; RSC review; Design reviews; Hazard identification and mitigation
Pillar II: HardwareRadiation safety components; Other credited controls; Utilities; Vacuum; EPS; Controls; Diagnostics; Experimental stations
Pillar III: PersonnelBeamline commissioning team
Cherno Jaye
Conan Weiland
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NIST Project @ BNL: Successful PartnershipNIST Project @ BNL: Successful Partnership
• NIST has over 35 years of partnership/history with BNL
• Operated 3 beamlines at the NSLS
• Provided X‐ray spectroscopies that span the entire periodic table
• Construction of SST 1, SST2 and BMM to improve upon and provide new capabilities (imaging and diffraction) to NSLS
44
NIST Project @ NSLSII: Design, Construction, Commissioning, Operation of SST1, SST2 and BMMNIST Project @ NSLSII: Design, Construction, Commissioning, Operation of SST1, SST2 and BMM
• BMM: IRR held in 6/17, now in commissioning
• SST = Spectroscopy Soft and Tender
• The SST Project beamline construction is ~90% funded by NIST
• SST scope includes 2 beamlines and the associated FE and IDs
• SST‐1 (soft) and SST‐2 (tender) are two X‐ray spectroscopy and microscopy beamlines (7‐ID)
• A Transfer Branch for soft beam into tender stations• The project began in 2010 and is expected to close out in Feb 2018
• SST‐1 and SST‐2 construction includes a large contract for two photon delivery systems; and the in‐house design and NSLS experimental stations
• SST‐1 and SST‐2 will be seeking IRR approval to begin the simultaneous commissioning of a pair of beamlines in one sector
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Scientific Program: SpectroscopyScientific Program: Spectroscopy
Meets NIST’s mission of developing and applying advanced measurement methods to establish structure‐function relationship for materials important for energy, health, national security and environment:
X‐ray absorption spectroscopy X‐ray photoelectron spectroscopy X‐ray absorption microscopy X‐ray photoelectron microscopy
Structure and chemistry of buried layers and interfaces of real device architectures
Precise measurements of material composition and molecular orientations of surfaces
6
L1 Mirror
M1 Mirror
L2A/L2B MirrorWater‐cooled pink beam PSH
WB Mask (FM1) and BTD
WB Stop
Water‐cooledFS6 and FS2
FM2
FM4
SST FOE LayoutSST FOE Layout
7
M3AB/M3CDCM
PGM
Precision Slit AB
8mm Pb SHIELDED PINK BEAM PIPES
PBS (M)
PBS (L) ZOM
MISSTEER MASKS
FM3
Precision Slit C
DM1 DM1 is under Configuration Control.
5cm Pb SHIELD (GB)
SST XF LayoutSST XF Layout
88
Beamline PerformanceBeamline PerformanceSST2:U421500 ‐ 7500 eVDouble Crystal Monochromator
Si (110), (220)50 μm (HAXPES)1014 photons/sCHA, CEM
SST1:EPU60100 ‐ 2200 eVPlane Grating Monochromator
250, 600, 1200 lines/mm15 μm (NEXAFS)1014 photons/sCEM, CHA
99
Commissioning Sequence Commissioning Sequence Activity Time frame Objective Equipment needed
First beam,radiation survey commissioning
February 17, 2018 onwards
Extract beams to sample position in the experimental stations; perform radiation survey to ensure enclosure integrity;
Gain approval for technical commissioning during regular operation
Photon delivery systems; radiation safety components;beam diagnostics/visualization screens
Technical commissioning
First and second cycle in 2018
Commission all components without and with beam as described in the technical commissioning plan
All photon delivery components and minimal experimental station equipment
Scientificcommissioning
September – December 2018;staged, overlapping with technical commissioning;
According to plan developed during technical commissioning
Optimize optics to achieve stable beams at standard energy (250 – 1100 eV suitable for first XAS data collections, 2100 – 5000 eV for photoemission)
All beamline components
1010
IRR scope Inclusions:1. Photon Delivery System: GV2 through HAXPES
(SST‐2) and GV2 through NEXAFS (SST‐1)2. Enclosure: 7‐ID FOE3. Photon Delivery System diagnostics4. EPS, PPS, all infrastructure necessary for
commissioning the Photon Delivery System5. NEXAFS and HAXPES experimental stations
IRR ScopeIRR ScopeIRR scope Exclusions:1. Source and FE: readiness reviewed ( 11/8/17)2. uCAL, LARIAT‐1, LARIAT‐2 and VPPEM
Experimental stations and their measurement capabilities: their safe and fit‐for intended use had been reviewed thru ES review held on Oct 23 and Nov 6. Will be added to the beamline later thru ESR
1111
Self Identified Pre-Start Findings:Self Identified Pre-Start Findings:1. Survey Reports Incomplete (data is collected).
• Delays closing installation travelers.• ACTIONS:
• Complete and check survey reports, adjust components if needed.• Confirm clearance on WBS (already in ATS).
• Close installation travelers.• Close IRP criteria (radiation safety component installation, optics installation).
2. PGM Uncooled aperture (upstream) out of alignment (0.6 mm low).• Worst‐case scenario mis‐steered pink synchrotron beam minimum angle smaller than designed,
causing a need for more shielding in PBS vessel (approx. 2mm SS).• ACTIONS:
• Revise scatter and shielding analysis (Technical Note).• Revise ray tracing to reflect as‐built configuration.• Design, fabricate, and install additional shielding (A1 Drawings).• Revise radiation safety component checklist.• Obtain approval from RSC (traces and checklist).• Update labeling and photographs at the beamline• Re‐do checklist training.• Close IRP criteria.
1212
Pillar I: Documentation
13
Carefully checked by RSC, signed and released (PD‐SST‐RAYT‐0001 )Prepared using NSLSII standard Ray Trace procedure and includes Absolute Positioning and Manufacturing TolerancesIncludes Recommendation from RSC Preliminary ReviewALL Bremsstrahlung and white beam contained in FOE
Ray TracingRay Tracing
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No mis‐steered synchrotron white or pink rays can hit the beam pipe.
Pink beam is greater than 25 mm from the inside wall of the transport pipe ‐conforms with NSLS‐II shielding policy for white beam.
Synchrotron Ray Tracing: HorizontalSynchrotron Ray Tracing: Horizontal
L1
M1
L2
15
In the FOE…The FE aperture defines the Bremsstrahlung stop/shieldPb Primary BremssShield stops the Bremsstrahlung in the horizontal.W Primary BremssStop between the two branches stops the Bremsstrahlung in the horizontal.
Bremsstrahlung Ray Tracing: HorizontalBremsstrahlung Ray Tracing: Horizontal
B
A
B
= Pb Bremsstrahlung ShieldA
= W Bremsstrahlung Stop
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The W has a 26 mm (>24 mm) clearance with the edge of the Max Bremsstrahlung in the vertical direction.
All Bremsstrahlung and white beam contained in FOE.
The FE aperture defines the Bremsstrahlung stop/shield
Bremsstrahlung Ray Tracing: VerticalBremsstrahlung Ray Tracing: Vertical
W
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The contact dose rate is 0.3 mrem/h and is 0.08 mrem/h at 30 cm distance.
Horizontal view
Vertical view
SST Technote TN275…by S. Chitra & M. Benmerrouche
SGB radiation from SST white beam components are the dominant sources of dose on FOE walls. Beam incident on the outboard side of the WBS.
Secondary Bremsstrahlung: FLUKA SimulationsSecondary Bremsstrahlung: FLUKA Simulations
1818
RSC ReviewsRSC Reviews Preliminary review on November 6, 2017
Purpose was for RSC to provide guidance on finalizing the ray‐trace drawings Recommendations included showing angles and centerlines for both branches,
dimension of major components
Final review on January 12, 2018
Panel reviewed revised ray‐tracing No recommendations Concluded that the radiation thermal and shielding components are
adequately designed to protect against thermal failure of shielding components.
Release of final ray‐tracing : Feb 2018
1919
Radiation Survey PlanRadiation Survey Plan NSLSII procedure NSLSII‐7ID‐PRC‐001 is available from SharePoint at https://ps.bnl.gov/docs/default.aspx.
First check for Bremsstrahlung by allowing the SST‐1 and the SST‐2 white beams to simultaneously strike the white beam element in the FOE
Then propagate white, and pink beams into the FOE and transport pipes to verify shielding integrity
Comprehensive radiation surveys required at 125 mA, making it possible to take up to 3 times the beam current for commissioning
2020
Design ReviewsDesign ReviewsMajor contracts with vendors reviewed per SOW
Documentation maintained on SharePoint:https://ps.bnl.gov/docs/default.aspx.
Photon delivery systems contracted to FMB‐OxfordContract Award on Sept 19, 2014PDR held at BNL May 5‐7, 2015
https://ps.bnl.gov/phot/ProjectBeamlines/PartnerBeamlines/sst/Shared%20Documents/Forms/AllItems.aspx?RootFolder=%2fphot%2fProjectBeamlines%2fPartnerBeamlines%2fsst%2fShared%20Documents%2fPDS&FolderCTID=0x0120002D97EB8C84CEA64581BF3FF7017EEC04.
FDR held at BNL; Sept 1‐2, 2015 https://ps.bnl.gov/phot/BeamlineSupportDocs/Forms/AllItems.aspx?RootFolder=%2Fphot%2FBea
mlineSupportDocs%2FSST&FolderCTID=0x0120001E47AA8A26090440949F6FCE5C4912B4&View={1A6A7F3D‐FC96‐4F7A‐AD6C‐A8E5E9569AE8}.
BAT meeting 14‐15 July, 2016
2121
Hazard Identification and MitigationHazard Identification and Mitigation
Hazard Mitigation
Radiation Shielding; VSW; PPS; ARM
Cryogen ODH sensor
Hazardous material ‐ Lead Lead shielding parts are painted and/or covered
Pressure safety – vacuum vessels Burst discs and PRVs are installed where necessary to prevent over‐pressure during venting using GN2 backfill
Pressure safety – vacuum windows Pressure test data (either provided by vendor or performed by beamline)
Electrical EEI; grounding;
USI evaluation is Negative; hazards covered by existing SAD/ASE BNL/NSLS‐II safety procedures and practices are adhered to during design/construction and commissioning
2222
Pillar II: Hardware
2323
Shielded Enclosures, Transport Pipes and BellowsShielded Enclosures, Transport Pipes and Bellows7‐ID FOE lined with lead:
10mm roof; 18mm sidewall;50mm downstream wall
Additional shielding for bellows and thin‐walled pipe up to slits (SST‐1)/PBS (SST‐2)Form part of checklist
Lead‐shielded pink transport pipe (before monos): 8mmOne junction box needed on the Tender pink transport pipeForm part of checklist
2424
Radiation Safety Components: BremsstrahlungRadiation Safety Components: Bremsstrahlung
Bremsstrahlung Stop
Bremsstrahlung Shield + WBS
All radiation safety components surveyed into place.Components under configuration control are labeled and inspected according to NSLSII procedure.Form part of checklist
2525
Radiation Safety Components: BremsstrahlungRadiation Safety Components: Bremsstrahlung
Secondary Bremsstrahlung
Shield 3
Secondary Bremsstrahlung
Shield 1
Secondary Bremsstrahlung
Shield 2
All radiation safety components surveyed into place.under configuration control, labeled and inspected according to NSLSII procedure.Form part of checklist
2626
Radiation Safety Components: SynchrotronRadiation Safety Components: Synchrotron
FOE water‐cooled Photon shutters (x2) guillotines and collars
Dual fixed aperture mask + PPS aperture
XF Photon shutters + Beam stop
All surveyed into place.Under configuration controlForm part of checklist
2727
Radiation Safety Components: SynchrotronRadiation Safety Components: Synchrotron
SST‐2 Pink Beam Stop external to the DCM
SST‐1 Pink Beam Stop
FM2, FM3 and FM4 to intercept any mis‐steered pink beam
ZOM after PGM
2828
PPSPPS
Cooling water for radiation safety components monitored by PPS PPS‐Interlocked Vacuum Switches, user labyrinth, hutch door Search and secure procedure in place for the FOE
Search Buttons
HMI
Photon Shutters + Vacuum Switches
29
Configuration Control:Configuration Control:
•All radiation safety components •Utility labyrinths •Beam delivery tubing •Vacuum switch valves
Forms checklist6 roof labyrinths
3030
Other Credited Safety ComponentsOther Credited Safety Components
Area Radiation Monitor (ARM)
3131
UtilitiesUtilities Located in FOE and the Experimental Floor and Stations via
pylons Electrical power: single phase, 208V, 3‐Phase Liquids
DI Water, Processed Chilled Water Nitrogen
Gases: Compressed air, Nitrogen Network: Cat6
Nitrogen
3232
VacuumVacuum Vacuum provided by IPs and air‐cooled turbo pumps FOE vacuum ~10‐9 Torr or better XF + ES vacuum ~10‐8 Torr or better 2x RGA heads and Fast Valve sensor Gauge and pump controllers located in water‐cooled racks FE GV2 allowed to open only when vacuum and RGA scan of VS1 are good
3333
EPSEPS Vacuum, Water flow and Temperature levels are Measured, Recorded, and
Displayed User‐friendly screens enable beamline staff to monitor status and control
shutters, gate valves and vacuum power supplies Provides Protection of Equipment – by setting limits
3434
ControlsControls
All motions and motion control have been established and tested Motion controllers for photon delivery system on water‐cooled racks on the XF NIST beamline control system to be integrated with EPICS
3535
DiagnosticsDiagnostics
Various Diagnostic Modules are located on the beamlines to Visualize the beam Align mirrors Measure beam current intensity Control size of beam
DM1‐DCM
DM6‐PGMDM7‐M4C
DM8‐M5C
3636
EndstationsEndstations
NEXAFS (SST‐1) and HAXPES (SST‐2) components used for commissioning the beamline
Equipped with scintillator screens (+ CCD Cameras) and electron detectors Visualize the beam Measure X‐ray absorption and emission spectroscopies
CEM
Camera
CHA
Camera
HAXPESNEXAFS
3737
Pillar III: Personnel
38
Commissioning TeamCommissioning Team
NIST Project Leader Daniel FischerLead Beamline Scientist, SST‐1 Cherno Jaye
Lead Beamline Scientist, SST‐2 Conan Weiland
Authorized Beamline Staff
Joseph Woicik Beamline ScientistJohnny Kirkland Controls Engineer
All beamline staff have completed their assigned training
39
SummarySummary
• 2‐phase commissioning: Technical commissioning (+Radiation Survey), Scientific commissioning
• Beamline ready for first light after pre‐starts closed– Infrastructure and support system complete and ready– All beamline staff training completed
• Experimental modules (stations, components) to go online throughout technical/scientific commissioning progress
40
AcknowledgementAcknowledgement
Rodger HubbardDonald DavisMing KeJim StolfiCharlie De La ParraPete deTollEd GrangerGuillermo AparicioGuimei WangSteve SherwoodKim WehuntJohn GosmanRuss O’BrienRich IaccarinoDanny PadrazoMike FulkersonDennis Kuhne
Andrew BroadbentZhong ZhongHoward RobinsonChris StebbinsGreg FriesJean SmilesJohn FabijanicMichael JohansonAndrew AckermanBruce LeinKristen RubinoJimmy BiancarosaMike MaklaryJoe ZipperLori StieglerRob ToddBob Lee
Steve BennettTravis HerbstSteve SauterRick SkelaneyGarrett BischofHuijuan XuHarman BassanZYJi LiKe ZhangSunil ChitraMo BenmerroucheCharles HetzelWalter DeBoerJim GrandyBrian Walsh
Mourad IdirMatt CowanLeon FlaksKeith DetmerJim GarganoArt HarrisRich GagliardiGeorge GanetisScott BudaAl BoernerAndrew SauerwaldSteve DeveryAndreas CastiblancoEwart OrrJerry MalleyKen Harsch
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